Colorado has joined a coalition of 20 other states in filing a lawsuit challenging the U.S. Department of Agriculture’s request for personally information of people who have received benefits through the federal food stamps program.

The federal agency has indicated it might withhold Supplemental Nutrition Assistance Program funding from states that refuse to turn over information about recipients, including names, dates of birth, Social Security numbers, and benefit amounts received dating back five years, according to the office of the Colorado attorney general.

The USDA said it needs this information to check the integrity of the program and ensure that all recipients are eligible to receive the benefits. The agency said this is part of the Trump administration’s campaign to root out waste, fraud and abuse in federal programs by, among other things, eliminating “information silos.”

Colorado is expecting to receive about $96 million in federal funding for SNAP, said Attorney General Phil Weiser, adding that any delay could be “catastrophic” for the more than 600,000 residents who get the food stamp benefits. 

Weiser and the other attorneys general argued that USDA’s demands violated the Spending Clause of the U.S. Constitution and multiple federal privacy laws, and they also failed to meet the public comment requirements for this type of action.